In days of olde, pre September 11, an acquaintance's (possibly even known to Mr Tinpis) sons travelled from Adelaide to Darwin, carrying in their luggage an assortment of bongs (not illegal to buy in those days) and other paraphernalia purchased in SA.
Imagine their horror when not long after arriving home, chatting away innocently to dad who knew nothing of their southern purchases, and the family home is raided by the drug squad.
I think the equipment was caught via x-ray as carry on baggage.
Now, lets move forward to the modern day, where millions, if not billions of dollars are spent on heightened security and much inconvenience to all, and a couple of kids get to carry an arsenal from one side of the country to the other!
